Audio Spectrogram Generator + dB Meter

Generate a live scrolling spectrogram from microphone input, or render a full-file spectrogram from uploaded audio. Includes real-time dB metering, decode fallbacks, and PNG export.

Ready.

Upload Audio File

Drop an audio file here or click Browse. The tool decodes and renders a full-file spectrogram automatically, with a manual regenerate button for updated settings.

dB Meter

Current (dBFS)
-
Peak (dBFS)
-
Estimated SPL (dB)
-
Level
-

Spectrogram

Low frequencies are at the bottom, high frequencies at the top. New audio data is drawn on the right and scrolls left.

Source Details

Active Source-
Audio Context-
File Metadata-
Decode FallbackNot attempted.

If unsupported files fail in-browser, try converting with your existing audio/video tools first, then re-run spectrogram analysis.